Physics

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What does the phenomenon of interference demonstrate? A) the wave nature of ligh Started by futuristic	1 Replies 1,037 Views	Aug 28, 2013 by curlz
What does the phenomenon of diffraction demonstrate? A) the wave nature of light Started by futuristic	1 Replies 1,852 Views	Aug 28, 2013 by curlz
Both sound waves and electromagnetic radiation A) travel at the speed of light. Started by futuristic	1 Replies 683 Views	Aug 28, 2013 by curlz
If a wave's frequency doubles, its wavelength A) is halved. B) is also doubled. Started by futuristic	1 Replies 509 Views	Aug 28, 2013 by curlz
The number of waves passing the observer per second is: A) the wavelength in ang Started by futuristic	1 Replies 600 Views	Aug 28, 2013 by curlz
A wave's velocity is the product of the A) frequency times the period of the wav Started by futuristic	1 Replies 586 Views	Aug 28, 2013 by curlz
The two forms of electromagnetic radiation that penetrate the atmosphere best ar Started by futuristic	1 Replies 596 Views	Aug 28, 2013 by curlz
The hottest objects with temperatures in the millions of degrees Kelvin, give of Started by futuristic	1 Replies 1,105 Views	Aug 28, 2013 by curlz
X-ray telescopes are located in orbit around the Earth because A) X-ray telescop Started by futuristic	1 Replies 561 Views	Aug 28, 2013 by curlz
Electromagnetic radiation with a wavelength of 700 nm would be: A) X-rays. B) re Started by futuristic	1 Replies 587 Views	Aug 28, 2013 by curlz
The visible color of electromagnetic radiation that has the shortest wavelength Started by futuristic	1 Replies 619 Views	Aug 28, 2013 by curlz
Colors appear different to us because of their photons' different: A) speeds. B) Started by futuristic	1 Replies 1,009 Views	Aug 28, 2013 by curlz
There are no X-ray telescopes on Earth because A) they are too expensive to buil Started by futuristic	1 Replies 498 Views	Aug 28, 2013 by curlz
There are no radio telescopes in space because A) no one has built an antenna la Started by futuristic	1 Replies 622 Views	Aug 28, 2013 by curlz
The radiation our eyes are most sensitive to lies in the color A) red at 6563 An Started by futuristic	1 Replies 751 Views	Aug 28, 2013 by curlz
Which type of radiation can be observed well from Earth's surface? A) gamma ray Started by futuristic	1 Replies 812 Views	Aug 28, 2013 by curlz
What is true of a blackbody? A) It appears black to us, regardless of its temper Started by futuristic	1 Replies 731 Views	Aug 28, 2013 by curlz
According to Wein's Law, if the surface temperature is increased by a factor of Started by futuristic	1 Replies 558 Views	Aug 28, 2013 by curlz
Star A has a temperature 1/2 that of star B, but star A is 5 times bigger than s Started by futuristic	1 Replies 645 Views	Aug 28, 2013 by curlz
Star A and star B have the same temperature, but different luminosities. What ca Started by futuristic	1 Replies 535 Views	Aug 28, 2013 by curlz
Star A has a temperature 1/2 that of star B, but star A is 3 times bigger than s Started by futuristic	1 Replies 773 Views	Aug 28, 2013 by curlz
The total energy radiated by a blackbody depends on A) the fourth power of its Started by futuristic	1 Replies 710 Views	Aug 28, 2013 by curlz
Star A and star B have the same temperature, but star B is more luminous than st Started by futuristic	1 Replies 560 Views	Aug 28, 2013 by curlz
At which of these Kelvin temperatures would a blackbody radiate mostly at visibl Started by futuristic	1 Replies 584 Views	Aug 28, 2013 by curlz
The wavelength at which a blackbody radiates most depends on its A) radius. B) m Started by futuristic	1 Replies 484 Views	Aug 28, 2013 by curlz